Zeppelin Release 0.5.5-incubating

The Apache Zeppelin (incubating) community is pleased to announce the availability of the 0.5.5-incubating release.
The community puts significant effort into improving Apache Zeppelin since the last release, focusing on having
new backend support, improvements on stability and simplifying the configuration. More than 60 contributors provided new features,
improvements and verifying release. More than 90 issues has been resolved.